Abstract

We present an update of the Universal FeynRules Output model format, commonly known as the UFO format, that is used by several automated matrix-element generators and high-energy physics software. We detail different features that have been proposed as extensions of the initial format during the last ten years, and collect them in the current second version of the model format that we coin the Universal Feynman Output format. Following the initial philosophy of the UFO, they consist of flexible and modular additions to address particle decays, custom propagators, form factors, the renormalisation group running of parameters and masses, and higher-order quantum corrections.

Details

Title
UFO 2.0: the ‘Universal Feynman Output’ format
Author
Darmé, Luc 1 ; Degrande, Céline 2 ; Duhr, Claude 3   VIAFID ORCID Logo  ; Fuks, Benjamin 4   VIAFID ORCID Logo  ; Goodsell, Mark 4   VIAFID ORCID Logo  ; Heinrich, Gudrun 5   VIAFID ORCID Logo  ; Hirschi, Valentin 6   VIAFID ORCID Logo  ; Höche, Stefan 7   VIAFID ORCID Logo  ; Höfer, Marius 5   VIAFID ORCID Logo  ; Isaacson, Joshua 7   VIAFID ORCID Logo  ; Mattelaer, Olivier 2 ; Ohl, Thorsten 8   VIAFID ORCID Logo  ; Pagani, Davide 9   VIAFID ORCID Logo  ; Reuter, Jürgen 10   VIAFID ORCID Logo  ; Richardson, Peter 11 ; Schumann, Steffen 12   VIAFID ORCID Logo  ; Shao, Hua-Sheng 4   VIAFID ORCID Logo  ; Siegert, Frank 13   VIAFID ORCID Logo  ; Zaro, Marco 14   VIAFID ORCID Logo 

1  Institut de Physique des 2 Infinis de Lyon (IP2I), UMR5822, CNRS/IN2P3, Villeurbanne Cedex, France (GRID:grid.462474.7) (ISNI:0000 0001 2153 961X) 
2  Université Catholique de Louvain, Center for Particle Physics and Phenomenology (CP3), Louvain-La-Neuve, Belgium (GRID:grid.7942.8) (ISNI:0000 0001 2294 713X) 
3  Bethe Center for Theoretical Physics, Universität Bonn, Bonn, Germany (GRID:grid.10388.32) (ISNI:0000 0001 2240 3300) 
4  Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, Paris Cedex 05, France (GRID:grid.463942.e) (ISNI:0000 0004 0369 8598) 
5  Karlsruhe Institute of Technology, Institute for Theoretical Physics, Karlsruhe, Germany (GRID:grid.7892.4) (ISNI:0000 0001 0075 5874) 
6  Institute for Theoretical Physics, University of Bern, Bern, Switzerland (GRID:grid.5734.5) (ISNI:0000 0001 0726 5157) 
7  Fermi National Accelerator Laboratory, Batavia, USA (GRID:grid.417851.e) (ISNI:0000 0001 0675 0679) 
8  University of Würzburg, Institut für Theoretische Physik und Astrophysik, Würzburg, Germany (GRID:grid.8379.5) (ISNI:0000 0001 1958 8658) 
9  INFN, Sezione di Bologna, Bologna, Italy (GRID:grid.470193.8) (ISNI:0000 0004 8343 7610) 
10  Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453) 
11  Institute for Particle Physics Phenomenology, Durham University, Durham, UK (GRID:grid.8250.f) (ISNI:0000 0000 8700 0572) 
12  Institute for Theoretical Physics, Georg-August-University Göttingen, Göttingen, Germany (GRID:grid.7450.6) (ISNI:0000 0001 2364 4210) 
13  Institut für Kern- und Teilchenphysik, TU Dresden, Dresden, Germany (GRID:grid.4488.0) (ISNI:0000 0001 2111 7257) 
14  Università degli Studi di Milano and INFN, Sezione di Milano, Milan, Italy (GRID:grid.470206.7) (ISNI:0000 0004 7471 9720) 
Pages
631
Publication year
2023
Publication date
Jul 2023
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1140/epjc/s10052-023-11780-9
ProQuest document ID
2838453791
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.